Engine JAC HFC4DA1-2C. Service manual — part 76
WW Wiper
Wiper
Wiper
Wiper and
and
and
and Washer
Washer
Washer
Washer System
System
System
System
- 94 -
Diagnostic
Diagnostic
Diagnostic
Diagnostic Test
Test
Test
Test
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
6.
Fault mode: Deviation of the wiper blade form its original position
Step
Operation
Yes
No
1
Remove the wiper switch and inspect the internal structure of it. Repair or
replace it if necessary and confirm that there are no faults in it.
Go to Step 2
2
Disconnect the wiper motor connector. Measure the pin voltage at the wire
harness side with a digital multimeter to verify whether the voltage is normal.
Go to Step 4
Go to Step 3
3
Inspect the instrument panel wire harness between the fuse and the wiper motor
according to relevant circuit diagrams and confirm that there are no faults in it.
Go to Step 4
4
Remove the wiper motor and inspect its structure. Repair or replace it if
necessary and verify whether the system is intact.
7.
Fault mode: Nonstop operation of the wiper
Step
Operation
Yes
No
1
Inspect the fuse and verify whether it is intact.
Go to Step 2
Go to Step 3
2
Replace the damaged fuse.
Go to Step 3
3
Remove the wiper switch and measure the voltage of the switch with a digital
multimeter to verify whether the voltage is normal.
Go to Step 5
Go to Step 4
4
Inspect the instrument panel wire harness between the fuse and the wiper switch
and repair it if necessary.
Go to Step 5
Go to Step 6
5
Inspect the internal structure of the wiper switch and replace or repair it if
necessary. Confirm that there are no faults in it and verify whether the system is
intact.
Go to Step 10
6
Disconnect the connector from the wiper motor, shift the ignition switch to ON
and shift the wiper switch to HI gear. Measure the pin voltage at the connector
(wire harness side) with a digital multimeter to verify whether the voltage is
normal.
Go to Step 7
Go to Step 10
7
Inspect the instrument panel wire harness between the wiper switch and the
relay. Confirm that there are no faults in it.
Go to Step 8
Go to Step 9
8
Verify the existence of good grounding of the ground wire with a digital
multimeter.
9
Remove the wiper motor and replace or repair it if necessary. Verify whether the
system is intact.
Go to Step 10
10
Inspect the instrument panel wire harness between the wiper switch and the wiper
motor according to relevant circuit diagrams. Repair it if necessary. Confirm that
there are no faults in it and verify whether the system is intact.
WW
WW
WW
WW Wiper
Wiper
Wiper
Wiper and
and
and
and Washer
Washer
Washer
Washer System
System
System
System
- 95 -
Removal
Removal
Removal
Removal and
and
and
and Installation
Installation
Installation
Installation
Removal
Removal
Removal
Removal of
of
of
of the
the
the
the wiper
wiper
wiper
wiper
1.
Disconnect the connecting wire of battery.
2.
Remove mounting bolts of the wiper.
3.
Disconnect the connecting pipe of the windshield
washing fluid nozzle.
4.
Remove sealing rubber strips and fixing clamps of
the wiper decorative panel.
WW Wiper
Wiper
Wiper
Wiper and
and
and
and Washer
Washer
Washer
Washer System
System
System
System
- 96 -
Removal
Removal
Removal
Removal and
and
and
and Installation
Installation
Installation
Installation
Removal
Removal
Removal
Removal of
of
of
of the
the
the
the wiper
wiper
wiper
wiper
5.
Take down the wiper blade and wiper decorative
panel.
6.
Remove connecting bolts of the wiper linkage.
7.
Take down the wiper linkage and wiper motor.
WW
WW
WW
WW Wiper
Wiper
Wiper
Wiper and
and
and
and Washer
Washer
Washer
Washer System
System
System
System
- 97 -
Removal
Removal
Removal
Removal and
and
and
and Installation
Installation
Installation
Installation
Removal
Removal
Removal
Removal of
of
of
of the
the
the
the windshield
windshield
windshield
windshield washing
washing
washing
washing fluid
fluid
fluid
fluid reservoir
reservoir
reservoir
reservoir
1.
Disconnect the connecting wire of battery.
2.
Lift the vehicle.
3.
Remove mounting bolts of the windshield washing
fluid reservoir.
4.
Take out the windshield washing fluid reservoir.
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